Cita APA (7a ed.)

Sewell, D. R. (1987). Mark Twain's languages: Discourse, dialogue, and linguistic variety. University of California Press.

Cita Chicago Style (17a ed.)

Sewell, David R. Mark Twain's Languages: Discourse, Dialogue, and Linguistic Variety. Berkeley [etc.]: University of California Press, 1987.

Cita MLA (9a ed.)

Sewell, David R. Mark Twain's Languages: Discourse, Dialogue, and Linguistic Variety. University of California Press, 1987.